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Influence Mechanisms of Inclusion Types on Rotating Bending Fatigue Properties of SAE52100 Bearing Steel

The rotating bending fatigue crack sources of SAE52100 high carbon bearing steel were studied in this paper. On the fatigue fracture surfaces, inclusions for crack initiation are mainly Ca-Al-O and TiN inclusions, and the size of TiN inclusions is much smaller than that of Ca-Al-O inclusions. The an...

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Autores principales: Shi, Zhiyue, Li, Jingjing, Zhang, Xiaodan, Shang, Chengjia, Cao, Wenquan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9323467/
https://www.ncbi.nlm.nih.gov/pubmed/35888503
http://dx.doi.org/10.3390/ma15145037
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author Shi, Zhiyue
Li, Jingjing
Zhang, Xiaodan
Shang, Chengjia
Cao, Wenquan
author_facet Shi, Zhiyue
Li, Jingjing
Zhang, Xiaodan
Shang, Chengjia
Cao, Wenquan
author_sort Shi, Zhiyue
collection PubMed
description The rotating bending fatigue crack sources of SAE52100 high carbon bearing steel were studied in this paper. On the fatigue fracture surfaces, inclusions for crack initiation are mainly Ca-Al-O and TiN inclusions, and the size of TiN inclusions is much smaller than that of Ca-Al-O inclusions. The analysis of inclusions by Aspex shows that the number and size of Ca-Al-O inclusions in the matrix are much larger than those of TiN inclusions. Combined with the calculation of stress intensity factor and the analysis of stress concentration factor, the sharp angle characteristic of TiN inclusions is the main reason for its stronger deterioration to fatigue properties, and the damaging effect of TiN inclusions with the same size to the matrix fatigue properties is about 1.33–1.67 times that of Ca-Al-O inclusions.
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spelling pubmed-93234672022-07-27 Influence Mechanisms of Inclusion Types on Rotating Bending Fatigue Properties of SAE52100 Bearing Steel Shi, Zhiyue Li, Jingjing Zhang, Xiaodan Shang, Chengjia Cao, Wenquan Materials (Basel) Communication The rotating bending fatigue crack sources of SAE52100 high carbon bearing steel were studied in this paper. On the fatigue fracture surfaces, inclusions for crack initiation are mainly Ca-Al-O and TiN inclusions, and the size of TiN inclusions is much smaller than that of Ca-Al-O inclusions. The analysis of inclusions by Aspex shows that the number and size of Ca-Al-O inclusions in the matrix are much larger than those of TiN inclusions. Combined with the calculation of stress intensity factor and the analysis of stress concentration factor, the sharp angle characteristic of TiN inclusions is the main reason for its stronger deterioration to fatigue properties, and the damaging effect of TiN inclusions with the same size to the matrix fatigue properties is about 1.33–1.67 times that of Ca-Al-O inclusions. MDPI 2022-07-20 /pmc/articles/PMC9323467/ /pubmed/35888503 http://dx.doi.org/10.3390/ma15145037 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Communication
Shi, Zhiyue
Li, Jingjing
Zhang, Xiaodan
Shang, Chengjia
Cao, Wenquan
Influence Mechanisms of Inclusion Types on Rotating Bending Fatigue Properties of SAE52100 Bearing Steel
title Influence Mechanisms of Inclusion Types on Rotating Bending Fatigue Properties of SAE52100 Bearing Steel
title_full Influence Mechanisms of Inclusion Types on Rotating Bending Fatigue Properties of SAE52100 Bearing Steel
title_fullStr Influence Mechanisms of Inclusion Types on Rotating Bending Fatigue Properties of SAE52100 Bearing Steel
title_full_unstemmed Influence Mechanisms of Inclusion Types on Rotating Bending Fatigue Properties of SAE52100 Bearing Steel
title_short Influence Mechanisms of Inclusion Types on Rotating Bending Fatigue Properties of SAE52100 Bearing Steel
title_sort influence mechanisms of inclusion types on rotating bending fatigue properties of sae52100 bearing steel
topic Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9323467/
https://www.ncbi.nlm.nih.gov/pubmed/35888503
http://dx.doi.org/10.3390/ma15145037
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